BCD

Command-line tools › N

Run nyancat from ChatGPT or Claude

Renders an animated, color, ANSI-text loop of the Poptart Cat. With BCD, ChatGPT, Claude and other AI apps can install and run nyancat on your own computer and read what it prints.

Works on

About nyancat

Version
1.5.2
License
NCSA
Installs (last 365 days)
899 · #2,806 in Homebrew
Homepage
nyancat.dakko.us
Install
brew install nyancat

Try asking

“Install nyancat with Homebrew and show me its version”
“Read nyancat --help and give me three useful examples for my files”
“Update nyancat and tell me what changed”

Questions

Can ChatGPT run nyancat on my computer?
Yes. With BCD on your Mac or Linux computer and command permission turned on for it, ChatGPT runs nyancat there and reads the output. Claude and other apps with MCP connectors can too.

Do I need to install nyancat first?
No. If Homebrew is installed, the AI can run brew install nyancat for you.

Is it safe?
A new computer starts read-only: running commands is turned on per computer, and BCD reaches only the folders you allow.

Try it on your computer

BCD connects ChatGPT, Claude and other AI apps to your own Mac, Windows or Linux computer. One computer is free, with 20,000 tool calls a month and no card.

Program data from Homebrew, updated 2026-11-11. Installs are Homebrew's installs on request over the last 365 days.